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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int gcd(int a,int b, int&x1,int&y1){
  5. 	if(b==0) {
  6. 		x1=1; y1=0;
  7. 		return a;
  8. 	}	
  9. 	int x2, y2;
  10. 	int g = gcd(b,a%b,x2,y2);
  11. 	x1=y2;
  12. 	y1=x2-(a/b)*y2;
  13. 	return g;
  14. }
  15.  
  16.  
  17. int main() {
  18. 	int a ,b,x,y;
  19. 	cin>>a>>b;
  20. 	cout<<gcd(a,a%b,x,y)<<endl;
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 4500KB
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https://ideone.com/aTx10D
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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